DiscoveryHandlerLinkOsOnly Class

Class definition for a callback to be invoked for Link-OS printer discovery events.

Inheritance Hierarchy

SystemObject
Zebra.Sdk.Printer.DiscoveryDiscoveryHandlerLinkOsOnly

Namespace: Zebra.Sdk.Printer.Discovery
Assembly: SdkApi_Core (in SdkApi_Core.dll) Version: 2.14.1989

Syntax

C++

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public class DiscoveryHandlerLinkOsOnly : DiscoveryHandler

Public Class DiscoveryHandlerLinkOsOnly
	Implements DiscoveryHandler

public ref class DiscoveryHandlerLinkOsOnly : DiscoveryHandler

The DiscoveryHandlerLinkOsOnly type exposes the following members.

Constructors

	Name	Description
	DiscoveryHandlerLinkOsOnly	Creates a DiscoveryHandler which will only report back Link-OS printers.

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Methods

	Name	Description
	DiscoveryError	This method is invoked when there is an error during discovery. The discovery will be cancelled when this method is invoked. DiscoveryFinished will not be called if this method is invoked.
	DiscoveryFinished	This method is invoked when discovery is finished.
	Equals	Determines whether the specified object is equal to the current object. (Inherited from Object.)
	FoundPrinter	This method is invoked when a Link-OS printer has been discovered. This method will be invoked for each printer that is found.
	GetHashCode	Serves as the default hash function. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Examples

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using System;
using System.Collections.Generic;
using Zebra.Sdk.Printer.Discovery;

public class DiscoveryHandlerLinkOsOnlyExample {

    public static void Main(string[] args) {
        try {
            Console.WriteLine("Starting Link-OS(TM) printer discovery.");

            LinkOsDiscoveryHandler discoHandler = new LinkOsDiscoveryHandler();
            NetworkDiscoverer.FindPrinters(new DiscoveryHandlerLinkOsOnly(discoHandler));
            while (!discoHandler.DiscoveryComplete) {
                System.Threading.Thread.Sleep(10);
            }
        } catch (DiscoveryException e) {
            Console.WriteLine(e.ToString());
        }
    }

    private class LinkOsDiscoveryHandler : DiscoveryHandler {

        private bool discoveryComplete = false;
        List<DiscoveredPrinter> printers = new List<DiscoveredPrinter>();

        public void DiscoveryError(string message) {
            Console.WriteLine($"An error occurred during discovery: {message}.");
            discoveryComplete = true;
        }

        public void DiscoveryFinished() {
            foreach (DiscoveredPrinter printer in printers) {
                Console.WriteLine(printer);
            }
            Console.WriteLine($"Discovered {printers.Count} Link-OS(TM) printers.");
            discoveryComplete = true;
        }

        public void FoundPrinter(DiscoveredPrinter printer) {
            printers.Add(printer);
        }

        public bool DiscoveryComplete {
            get => discoveryComplete;
        }
    }
}

Reference

Zebra.Sdk.Printer.Discovery Namespace